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Granger causality spectra during motor execution. GC peaks for all the combinations among SMA, LM1, and LPMC are within 0.06–0.1 Hz for all the conditions- (A–C) btRS condition, (D–F) RH, (G–I) LH, and (J–L) BH. Dashed lines in these plots show a significant threshold (p < 0.01, n = 27).
